Dulcet Slumber

Benefit: When you are using your bardic performance all enemies within 30 feet of you must make a will save whose DC modifier equals 10 plus one-half of your bard level (rounded down). Enemies that fail the save fall into a magical slumber. Those that are put to sleep in this way can be woken up but it takes a full round to do so. As long as you are using your bardic performance this affect persists. When your performance ends all enemies under this affect are allowed to make a new saving throw to end the affect. Each round those affected make new saving throws, adding one to their saving throw for each round after the bardic performance ended. Allies are unaffected by Dulcet Slumber.